Hey guys, this afternoon, after I came home from school, I found my box at my porch containing my new OVP, and 2 breather hoses....

I replaced the OVP immedietly and was disappointed to see no difference when I restarted the engine...

But I went back after the car's engine was cold, and guess what?!???

My surging, and 500 to 300 RPM idle is gone! It now idles like new at 900RPM...

BUT... since I tried it in the afternoon and it does not work, I have concluded that I got my cold start enrichment back!

I now suspect the coolant temp sensor... could this still be the culprit for the warm engine conditions? Thanks!